Tube-number record
5561
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BrandRCA
ClassHalf-Wave Mercury-Vapor Rectifier
Base4-pin
Filament5 V @ 10000 mA
Construction
Primary TypeRectifier
Rectifier TypeHalf-wave
Sections1
Filament / Heater
Warm-up Time300s
Heater NotesHeater voltage must be applied at least 5 minutes before anode voltage is applied.
Absolute Maximum Ratings
Plate Voltage10000 V
Cathode Current6400 mA
Audio Performance
Key Features
- Unipotential Cathode
- Mercury-Vapor
- Vertical Mounting
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Peak Voltage Drop | 15 V | — | — | — | — |
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